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  1. 10 Dec, 2013 15 commits
  3. 09 Dec, 2013 19 commits
    • Anthony Martin's avatar
      liblink: fix extern register accesses on Plan 9 (386) · 52ee63f5
      Anthony Martin authored 
      R=golang-dev, 0intro, rsc
CC=golang-dev
https://golang.org/cl/39680044
      52ee63f5
    • David du Colombier's avatar
      cmd/8c, cmd/8g, cmd/8l: fix Plan 9 warnings · 58005207
      David du Colombier authored 
      warning: src/cmd/8c/list.c:124 format mismatch d VLONG, arg 3
warning: src/cmd/8c/list.c:134 format mismatch d VLONG, arg 3
warning: src/cmd/8c/list.c:142 format mismatch d VLONG, arg 3
warning: src/cmd/8c/list.c:152 format mismatch d VLONG, arg 3
warning: src/cmd/8c/list.c:156 format mismatch d VLONG, arg 4
warning: src/cmd/8c/list.c:160 format mismatch d VLONG, arg 4
warning: src/cmd/8c/list.c:165 format mismatch d VLONG, arg 4
warning: src/cmd/8c/list.c:167 format mismatch d VLONG, arg 3
warning: src/cmd/8c/list.c:172 format mismatch d VLONG, arg 4
warning: src/cmd/8c/list.c:174 format mismatch d VLONG, arg 3
warning: src/cmd/8c/list.c:178 format mismatch d VLONG, arg 3
warning: src/cmd/8c/list.c:184 format mismatch d VLONG, arg 3

warning: src/cmd/8g/list.c:91 format mismatch d VLONG, arg 4
warning: src/cmd/8g/list.c:100 format mismatch d VLONG, arg 4
warning: src/cmd/8g/list.c:114 format mismatch d VLONG, arg 5
warning: src/cmd/8g/list.c:118 format mismatch d VLONG, arg 5
warning: src/cmd/8g/list.c:122 format mismatch d VLONG, arg 5
warning: src/cmd/8g/list.c:126 format mismatch d VLONG, arg 5
warning: src/cmd/8g/list.c:136 format mismatch d VLONG, arg 4

warning: src/cmd/8l/list.c:107 format mismatch d VLONG, arg 4
warning: src/cmd/8l/list.c:125 format mismatch ux VLONG, arg 4
warning: src/cmd/8l/list.c:128 format mismatch ux VLONG, arg 4
warning: src/cmd/8l/list.c:130 format mismatch d VLONG, arg 4
warning: src/cmd/8l/list.c:134 format mismatch d VLONG, arg 5
warning: src/cmd/8l/list.c:138 format mismatch d VLONG, arg 6
warning: src/cmd/8l/list.c:143 format mismatch d VLONG, arg 5
warning: src/cmd/8l/list.c:148 format mismatch d VLONG, arg 5
warning: src/cmd/8l/list.c:150 format mismatch d VLONG, arg 4
warning: src/cmd/8l/list.c:154 format mismatch d VLONG, arg 4
warning: src/cmd/8l/list.c:158 format mismatch d VLONG, arg 4
warning: src/cmd/8l/obj.c:132 format mismatch ux VLONG, arg 2

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/39710043
      58005207
    • Anthony Martin's avatar
      runtime: do not use memmove in the Plan 9 signal handler · 274a8e3f
      Anthony Martin authored 
      Fixes a regression introduced in revision 4cb93e2900d0.

That revision changed runtime·memmove to use SSE MOVOU
instructions for sizes between 17 and 256 bytes. We were
using memmove to save a copy of the note string during
the note handler. The Plan 9 kernel does not allow the
use of floating point in note handlers (which includes
MOVOU since it touches the XMM registers).

Arguably, runtime·memmove should not be using MOVOU when
GO386=387 but that wouldn't help us on amd64. It's very
important that we guard against any future changes so we
use a simple copy loop instead.

This change is extracted from CL 9796043 (since that CL
is still being ironed out).

R=rsc
CC=golang-dev
https://golang.org/cl/34640045
      274a8e3f
    • Russ Cox's avatar
      .hgignore: ignore liblink/anames?.c · dba4d11e
      Russ Cox authored 
      R=golang-dev, minux.ma, iant
CC=golang-dev
https://golang.org/cl/36300045
      dba4d11e
    • Anthony Martin's avatar
      build: do not use the host's libbio on Plan 9 · 66c32384
      Anthony Martin authored 
      R=jas, lucio.dere, rsc
CC=golang-dev
https://golang.org/cl/14604047
      66c32384
    • Carl Shapiro's avatar
      cmd/gc, runtime: correct a misnomer regarding dead value maps · bc9691c4
      Carl Shapiro authored 
      The funcdata symbol incorrectly named the dead value map the
dead pointer map.  The dead value map identifies all dead
values, including pointers and non-pointers, in a stack frame.
The purpose of this map is to allow the runtime to poison
locations of dead data to catch lost invariants.

R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/38670043
      bc9691c4
    • Russ Cox's avatar
      cmd/gc: fix windows build, probably · 9a53fb57
      Russ Cox authored 
      TBR=iant
CC=golang-dev
https://golang.org/cl/39540043
      9a53fb57
    • Russ Cox's avatar
      cmd/6l: fix linux/amd64 · 1eac128d
      Russ Cox authored 
      TBR=iant
CC=golang-dev
https://golang.org/cl/39530043
      1eac128d
    • Russ Cox's avatar
      cmd/dist, cmd/go: pass -fmessage-length always · 65a643ba
      Russ Cox authored 
      R=golang-dev, iant
CC=golang-dev
https://golang.org/cl/36300044
      65a643ba
    • Russ Cox's avatar
      cmd/gc: print more information for windows failure · 295e73e1
      Russ Cox authored 
      TBR=iant
CC=golang-dev
https://golang.org/cl/39510043
      295e73e1
    • Russ Cox's avatar
      cmd/ld: fix linux/386 build · 0c0589ec
      Russ Cox authored 
      TBR=iant
CC=golang-dev
https://golang.org/cl/39400044
      0c0589ec
    • Russ Cox's avatar
      cmd/dist, cmd/go: pass -fmessage-length=0 when using clang · 79479ac4
      Russ Cox authored 
      That option turns off word wrapping of individual
error messages generated by clang. The wrapping
makes the errors harder to read and conflicts with the
idea of a terminal window that can be resized.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/35810043
      79479ac4
    • David du Colombier's avatar
      liblink: fix Plan 9 build · b9bed397
      David du Colombier authored 
      R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/39280043
      b9bed397
    • Russ Cox's avatar
      runtime: remove cross-function jump in vlop_arm.s · 7c17982f
      Russ Cox authored 
      The new linker will disallow this on arm
(it is already disallowed on amd64 and 386)
in order to be able to lay out each function
separately.

The restriction is only for jumps into the middle
of a function; jumps to the beginning of a function
remain fine.

Prereq for linker cleanup (golang.org/s/go13linker).

R=iant, r, minux.ma
CC=golang-dev
https://golang.org/cl/35800043
      7c17982f
    • Russ Cox's avatar
      cmd/5g, cmd/6g, cmd/8g: use liblink · f606c1be
      Russ Cox authored 
      Preparation for golang.org/s/go13linker work.

This CL does not build by itself. It depends on 35740044
and 35790044 and will be submitted at the same time.

R=iant
CC=golang-dev
https://golang.org/cl/34590045
      f606c1be
    • Russ Cox's avatar
      cmd/5c, cmd/6c, cmd/8c: use liblink · 76a8c873
      Russ Cox authored 
      Preparation for golang.org/s/go13linker work.

This CL does not build by itself. It depends on 35740044
and 35790044 and will be submitted at the same time.

R=iant
CC=golang-dev
https://golang.org/cl/34580044
      76a8c873
    • Russ Cox's avatar
      cmd/5a, cmd/6a, cmd/8a: use liblink · f7aaa553
      Russ Cox authored 
      Preparation for golang.org/s/go13linker work.

This CL does not build by itself. It depends on 35740044
and 35790044 and will be submitted at the same time.

R=iant
CC=golang-dev
https://golang.org/cl/35830043
      f7aaa553
    • Russ Cox's avatar
      liblink: create new library based on linker code · 7d507dc6
      Russ Cox authored 
      There is an enormous amount of code moving around in this CL,
but the code is the same, and it is invoked in the same ways.
This CL is preparation for the new linker structure, not the new
structure itself.

The new library's definition is in include/link.h.

The main change is the use of a Link structure to hold all the
linker-relevant state, replacing the smattering of global variables.
The Link structure should both make it clearer which state must
be carried around and make it possible to parallelize more easily
later.

The main body of the linker has moved into the architecture-independent
cmd/ld directory. That includes the list of known header types, so the
distinction between Hplan9x32 and Hplan9x64 is removed (no other
header type distinguished 32- and 64-bit formats), and code for unused
formats such as ipaq kernels has been deleted.

The code being deleted from 5l, 6l, and 8l reappears in liblink or in ld.
Because multiple files are being merged in the liblink directory,
it is not possible to show the diffs nicely in hg.

The Prog and Addr structures have been unified into an
architecture-independent form and moved to link.h, where they will
be shared by all tools: the assemblers, the compilers, and the linkers.
The unification makes it possible to write architecture-independent
traversal of Prog lists, among other benefits.

The Sym structures cannot be unified: they are too fundamentally
different between the linker and the compilers. Instead, liblink defines
an LSym - a linker Sym - to be used in the Prog and Addr structures,
and the linker now refers exclusively to LSyms. The compilers will
keep using their own syms but will fill out the corresponding LSyms in
the Prog and Addr structures.

Although code from 5l, 6l, and 8l is now in a single library, the
code has been arranged so that only one architecture needs to
be linked into a particular program: 5l will not contain the code
needed for x86 instruction layout, for example.

The object file writing code in liblink/obj.c is from cmd/gc/obj.c.

Preparation for golang.org/s/go13linker work.

This CL does not build by itself. It depends on 35740044
and will be submitted at the same time.

R=iant
CC=golang-dev
https://golang.org/cl/35790044
      7d507dc6
    • Russ Cox's avatar
      cmd/dist: add liblink build information · 8642cbd6
      Russ Cox authored 
      In addition to adding the library, change the way the anames array is created.
Previously, it was written to src/cmd/6l/enam.c (and similarly for 5l and 8l)
and each of the other tools (6g, 6c, 6a) compiled the 6l/enam.c file in addition
to their own sources.

Now that there is a library shared by all these programs, move the anames
array into that library. To eliminate name conflicts, name the array after
the architecture letter: anames5, anames6, anames8.

First step to linker cleanup (golang.org/s/go13linker).

This CL does not build by itself. It depends on the CLs introducing
liblink and changing commands to use it.

R=iant
CC=golang-dev
https://golang.org/cl/35740044
      8642cbd6
  5. 06 Dec, 2013 6 commits